NEMESIS can pick up such symbols from various social media outlets like Twitter, Facebook, and even Reddit, for which she has served as a moderator in the past, reports Motherboard.

Aside from his numerous tricks, the Joker has evolved into a symbol of chaos that opposes the order Bruce Wayne fights for. ... This New Joker Theory Just Changed How I See Batman's Nemesis Forever.

Researchers believe they belong to statues of Artemis—goddess of hunting, wildlife, and nature (also known as Diana in Roman mythology)—and Nemesis—symbol of justice, balance, and vengeance.